JP2015516244A - Apparatus and method for inputting user information to medical device - Google Patents

Abstract

The present invention relates to an apparatus and method for inputting user information to a medical device. The present invention supports the work of medical personnel in charge during operation of the medical device, and ensures that settings that are inappropriate for the actual treatment situation are not made unintentionally or unintentionally during operation of the medical device. It is based on the purpose. To this end, the present invention relates to a method and apparatus for identifying a medical device and checking a second parameter value input to the input device by handwriting or orally, with the first parameter value or the second parameter value being checked. Whether the parameter value is adopted or whether it can be adopted for further processing in the control device controlling the medical device, or both the first parameter value and the second parameter value are further controlled in the control device controlling the medical device. It is determined whether the job has not been adopted or could not be adopted. [Selection] Figure 3

Description

  The present invention relates to the field of instruments and methods for entering user information into a medical device.

  A medical device is particularly understood to also include a fluid treatment device, such as a blood treatment instrument, in which fluid from a patient is passed by a fluid line through a fluid treatment component, with which the fluid treatment component is used to process the fluid. Can be returned to the patient via the fluid line, which can be divided into arterial and venous branches. Examples of such blood treatment instruments include in particular hemodialysis instruments. One such blood treatment instrument is the gist of the Applicant's German Patent No. 198449787 (C1).

  Dialysis is the process of purifying the blood of patients with acute or chronic renal failure. In this case, a method using extracorporeal blood circulation, such as hemodialysis, hemofiltration or hemodiafiltration (hereinafter collectively referred to as “hemodialysis”) and peritoneal dialysis that does not require extracorporeal blood circulation are basically used. Differentiated.

  In hemodialysis, blood is carried into the extracorporeal circuit through the blood chamber of the dialyzer separated from the dialysis fluid chamber by a semipermeable membrane. A dialysis fluid containing blood electrolytes at a certain concentration flows through the dialysis fluid chamber. The substance concentration of the dialysis fluid matches the concentration in the blood of a healthy person. During treatment, the patient's blood and dialysis fluid pass through the sides of the membrane in a normal countercurrent with a predetermined flow rate. Substances that must be removed from the urine diffuse through the membrane from the blood chamber into the chamber for the dialysis fluid, while at the same time electrolytes present in the blood and dialysis fluid are from the high concentration chamber to the low concentration Diffuses into the chamber. For example, when a pressure gradient is generated from the blood side to the dialysate side by the pump that draws dialysate from the dialysate circulation located downstream from the dialyzer filter and the dialysate side, the water is dialyzed. Proceeds through the membrane from the patient's blood into the dialysate circulation. This ultrafiltration process removes the desired water from the patient's blood (water removal).

  In hemofiltration, ultrafiltrate is removed from the patient's blood by applying intermembrane pressure into the dialyzer while preventing dialysis fluid from passing through the side of the dialyzer membrane opposite the patient's blood. It is taken out. In addition, a sterile, pyrogen-free replacement solution may be added to the patient's blood. This replacement solution is called predilution or postdilution depending on whether it is added upstream or downstream as viewed from the dialyzer. Mass exchange occurs by convection during hemofiltration.

  Hemodiafiltration is a combination of hemodialysis and hemofiltration. Diffusion mass exchange occurs between the patient's blood and the dialysis fluid across the dialyzer semi-permeable membrane, and is further filtered by the pressure gradient that the plasma water applies to the dialysis membrane.

  Plasma phlebotomy (plasma exchange separation method) is a method of separating plasma from blood cell components (cells) of blood. The plasma separated thereby is clarified or replaced with a replacement solution and returned to the patient.

  In peritoneal dialysis, dialysis fluid is filled through a catheter that passes through the abdominal wall through the abdominal wall of the patient so that the dialysis fluid has a concentration gradient relative to the endogenous fluid. A toxin present in the patient's body passes through the peritoneum, which functions as a membrane, and enters the abdominal cavity. Several hours later, spent dialysis fluid in the patient's abdominal cavity is replaced. Water can travel from the patient's blood through the peritoneum and into the dialysis fluid by the osmotic process, thus removing the water from the patient.

  Such dialysis methods are usually based on automatic dialysis machines such as trade name 5008 or Sleep. Performed by a dialysis machine sold by the applicant in the safe (sleep.safe).

  These dialysis machines are complex medical devices with a wide variety of functions. Such instruments are often operated by a touch screen display, which is understood to be a combined input and output device.

  A wide variety of operating steps and operator input to the dialysis machine are necessary for its own preparation and processing, and these steps are usually performed by skilled medical personnel.

  For example, in the case of a hemodialysis procedure, the hemodialysis machine must be equipped with dedicated disposable parts (disposals) for treatment and patients. These include, for example, blood tube sets and dialysis filters.

  In addition, various settings should be made to the instrument before or during treatment. For example, typical values for blood pump flow or dialysate flow must be set. In addition, relevant factors include dialysis time, blood temperature during extracorporeal blood circulation, the amount of water to be removed from the patient's blood, optionally the flow rate of the replacement solution mixed with the patient's blood, and certain dialysis specific Concentration ratios for dilution of concentrates such as bicarbonate or sodium.

  In addition, certain conditions may occur during the treatment, in which case the dialysis machine sends an operator input, for example a message on the output device that requires confirmation and / or approval or input of the value by the operator. Output to. Such a message may be a warning message, for example, and this warning message is displayed on a display screen, for example. However, the operator's attention may also be attracted, for example, by an optical signal device, such as a lamp or an alarm sound.

  Importantly, operator input to the dialysis instrument must be made to process such messages.

  Such operator input is typically performed on a touch screen display.

  Treatment is often performed in a dialysis center where several dialysis machines can be used to treat a large number of patients simultaneously. Medical staff perform many treatments as part of their activities. This often requires the same setup on the dialysis machine to be repeated for different patients.

  Automatically suggest by displaying standard values for various settings on the touch screen display during treatment preparation to bring medical staff some relief for their work It is possible to provide a dialysis machine so that medical personnel need to confirm these settings by operator input, for example, by actuating an OK button on the touch screen.

  During treatment, there may also be situations where the treatment instrument requires operator input when, for example, the monitoring device monitoring the treatment detects an alarm condition.

  For example, the incoming arterial blood pressure during extracorporeal blood circulation may be monitored during dialysis. This blood pressure is measured on the intake side of the blood pump and has a negative value relative to the external pressure. If the arterial blood pressure is too low, this may suggest that the blood flow is too high. Thus, a warning message is output when the dialysis machine detects arterial blood pressure below a predetermined limit value.

  At the same time, the dialysis machine can suggest reducing the blood flow by a certain amount by prompting a corresponding output on the display. In this case, some means corresponding to the alert message may be available to the user by means of a corresponding selection button, for example as a touch sensitive surface on a touch screen display. The operator can agree to the suggestion presented by the dialysis instrument by pressing a confirmation button or an OK button, or the suggestion may be rejected by pressing a “no” button or an end button.

  The operator may recognize such a requirement for deliberate confirmation of the suggestion presented by the dialysis machine as a disruption interruption in the treatment sequence and should not consider it even if it does not confirm the possible outcome of the suggestion. There is a risk of confirming this suggestion prematurely. This therefore hinders protection against changes in the settings of the medical device automatically suggested by the medical device.

  In medical devices, especially dialysis machines, this can result in patient risk or suboptimal settings can be made, which can adversely affect the quality of treatment.

  In particular, in daily practice in dialysis clinics, there may be certain time pressures due to the large number of treatments, resulting in accepting and implementing the settings suggested by the dialysis machine prematurely and without consideration. There is a case.

  This problem occurs not only for dialysis machines, but also for medical devices that generally suggest setting values via output devices, such as display screens or touch screen displays, so these setting values can only be confirmed in a short time, For example, it can be selected by the operator by actuating an OK button on the touch screen display.

German Patent No. 1984949787 (C1) specification

  Accordingly, the object of the present invention is to support, on the one hand, the work of the medical staff in charge by the operation of the medical device, while on the other hand, settings that are inappropriate for a particular treatment situation are inadvertently activated during the operation of the medical device. Another object is to provide an apparatus and a method for preventing accidental operation.

  These problems are solved according to the invention by a method having the features of claim 1 and an instrument having the features of claim 8.

  Advantageous embodiments are the subject matter of the dependent claims.

  The present invention thus provides a user input method for a medical device that outputs a first parameter value characterizing the medical device or a message directed to the operator of the medical device and a second parameter value or command characterizing the medical device. For further processing in a control unit that controls the dialysis instrument, depending on the result of the test, and depending on the result of the test, the step of handwriting or verbal input; the step of verifying the second parameter value or command; That the first parameter value and the second parameter value are not or are not acceptable for further processing in the control unit controlling the dialysis instrument or the instruction Prompting that the be sent to a control unit that controls the dialysis machine.

  In addition, the present invention is an instrument comprising a medical device with an input device, an output device, and a control unit, the instrument providing a first parameter value characterizing the medical device or an operator of the medical device. Verifying the output of the message to be directed on the output device, verifying a second parameter value or command characterizing the medical device, entered by handwriting or verbal input via the input device, and first depending on the verification result Or accepting or accepting the second parameter value, or not accepting or accepting the first or second parameter value, or having the control unit controlling the instrument accept the command Based on an instrument characterized by that.

  Medical device is to be understood in particular as meaning a dialysis machine. An example of an instrument configured for hemodialysis will be described in detail. As will be apparent to those skilled in the art, the present invention is a medical device that may cause problems where the suggestions made by the instrument for each instrument that are not suitable for a particular treatment situation may be accidentally accepted by the operator. It can be used for anything.

  Such set values include parameter values for certain parameters that each characterize the medical device. Corresponding parameter values include, for example, pump settings, such as flow rate, dialysate flow rate, or replacement fluid flow rate, which can be removed from the patient's blood during the extracorporeal blood circulation temperature, during or during the duration of treatment. The total amount of water is also mentioned.

  For other medical devices, these parameter values can each be used for characterizing the dialysis instrument and / or for other parameters specific to the dialysis instrument. For example, in the case of an injection device, the injection volume and the total volume of fluid to be injected are possible parameters.

  The output device often includes a display that can be embodied as a touch screen display. Such a touch screen display combines an input device and an output device in a common plane, and the touch screen display provides a touch sensitive surface in which operator input can be detected in this common plane.

  However, for example, a conventional display such as a CRT monitor, LCD, plasma type or OLED display is used as an output device and / or as an input device, spatially separated from the output device and detecting an operator input as an input device By using a touch pad that provides a touch-sensitive surface that can be used, spatial separation between the input device and the output device can be considered.

  The output device can also be assumed to have a loudspeaker that can acoustically output, for example, a parameter or parameter value suggested by the medical device as a medical device.

  One such acoustic output device may also exist for existing optical output devices.

  A microphone may be provided to input operational information. In this case, the parameter values spoken by the operator are analyzed and further processed by a suitably programmed control unit having provided speech recognition software.

  Medical devices often have at least one control unit. One such control unit characterizes the medical device and controls the components of the medical device based on parameter values set as known to the control unit, among other things. Such control units are often equipped with a programmable microprocessor or microcontroller such that the programs that control these control units are deployed in a program data memory provided for this purpose. The program relating to the dialysis machine setpoints may be parameterized by operator input. These parameter inputs thus include parameter values that characterize the medical device.

  Many control units are often provided in one medical device. In the sense of the present invention, a control unit is also understood to be a plurality of control units that can be parameterized by operator input.

  The control unit maintains standard values for various setpoints in the sense of the present invention or dynamically determines standard values as proposed on the output device during treatment or medical treatment. This can be done optically by means of a display on the display screen and / or acoustically by means of audio output by means of loudspeakers.

  Thus, standard values that are known to be successful for various treatment situations are displayed for the operator. This standard value is the first parameter value that can identify the dialysis machine.

  According to the present invention, the proposed parameter value can be transmitted to the control unit (where the parameter value parameterizes the corresponding program), or the operator enters the first value The numerical value of the parameter must be input to the input device.

  This is preferably done by handwriting in that the operator writes on a touch-sensitive surface, often in the form of a touch screen display. This is done manually, for example using a finger or stylus.

  This operator input is installed in the medical device and analyzed by handwriting recognition software familiar to those skilled in the art, which is then converted to a numerical value. This numerical value derived from the motion input is a second parameter value characterizing the medical device.

  As a variant, such operator input may also be made verbally in that the operator makes a spoken input using a microphone. Conversation recognition software, also installed and familiar to those skilled in the art, converts this input into a second parameter value characterizing the medical device by a procedure similar to that used with handwriting recognition software.

  Thus, the input of the second parameter value characterizing the medical device is accomplished by handwriting or verbal input or optionally both.

  The control unit compares the first parameter value that characterizes the medical device with the second parameter value, such that the first parameter value is received by the control unit, and the control unit includes the first parameter value that characterizes the medical device. A device for parameterizing a corresponding control program for a case where the parameter value and the second parameter value match is controlled, thereby receiving or receiving the first parameter value.

  Thus, the transmission can be accomplished without further action on the part of the operator and can be immediately effective, or the transmission can be performed, for example, with a corresponding button (e.g., a touch screen operating surface). It may be done by additional operator input by actuating. This once again gives the operator the opportunity to consider just the proposed parameter values.

  The control unit can also verify whether the second parameter value is within a certain limit value. If the second parameter value is outside these limits, the control unit directs neither or cannot transmit the first parameter value or the second parameter value in order to parameterize the corresponding control program. Good to do.

  In the meaning of the present invention, the control units that perform comparison and / or verification and / or transmission may be the same control unit, but different control units may also include, for example, a plurality of different control units. When provided inside, it may be part of a medical device.

  Thus, the present invention is not traditionally a simple confirmation that may be implemented in a simple and unobtrusive manner, for example, by touching the corresponding operating surface, but instead of this parameter value by handwriting or verbal input by the operator on the medical device. Alternatively, it is based on the technical idea that the operator of the medical device is prompted by inputting another parameter value of the corresponding parameter and the operator reconsiders the parameter value suggested by the medical device.

  Additional details and advantages of the present invention will be described in detail based on the exemplary embodiments shown in the drawings.

It is a figure which shows the medical device of this invention embodied, for example as a dialysis machine. It is a figure which shows the screen content of the medical device as the present condition of a technique. It is a figure which shows embodiment of the screen content of the medical device of this invention. It is a figure which shows two other embodiment of the screen content of the medical device of this invention. It is a figure which shows two other embodiment of the screen content of the medical device of this invention.

  FIG. 1 schematically illustrates one embodiment of the medical device 110 of the present invention as a hemodialysis machine with a touch screen display 100. The hemodialysis instrument 110 shows the part of the extracorporeal blood circuit or circuit (shown in the figure) with an arterial blood line 101 that draws blood from a patient (not shown). The blood pump 102 sends blood into the dialysis filter 103, and the dialysis filter includes a semipermeable membrane (semipermeable membrane) that semi-permeablely separates the extracorporeal blood circulation path from the dialysis circulation path or circuit. Treated blood is returned to the patient through venous line 104. The dialysate is pumped through the dialysis lines 105, 106 into the dialysis filter 103 where it enters a diffusive mass exchange relationship with the patient's blood through the semipermeable membrane of the dialysis filter 103. When a pressure gradient from the blood side of the dialysis filter to the patient's dialysate side is also established, plasma water is pushed from the blood into the dialysate. Thus, water can be removed from the patient's blood. The dialysate is prepared in the hemodialysis machine 110 and discarded after use. The hemodialysis instrument 110 further includes a loudspeaker 107 and a microphone 108 as additional input and output devices. As will be apparent to those skilled in the art, the loudspeaker can basically be used as a microphone. This is because loudspeakers can operate according to the same technical principle.

  FIG. 2 shows the screen content of a touch screen display 100 typical of a dialysis machine as the state of the art. Here, a first parameter value 206 characterizing the medical device shown as a numerical value “400” with the next unit “mL / min” is visible in the field 201. The question mark shown in this field 201 also characterizes the parameter as an unacceptable suggestion. The parameter 207 (blood flow) is also displayed.

  Three areas for operator input are available on the right side of the outlined area 201. To confirm the proposed parameter value 206, the operator must confirm this on the operator area 203, which is characterized by a framed check mark. Triangular regions 202 and 204 where the parameter value 206 can be increased or decreased are used to change the proposed parameter value 206.

  This operational concept shown in FIG. 2 carries the risk that the operator can accept the proposed standard value too lightly. This is because only a few operational steps are necessary to accept it, in this example only one step.

  However, FIG. 3 illustrates an embodiment of the screen content of the medical device of the present invention with respect to the same steps that are performed according to the state of the art of FIG. 2 during the preparation of the medical device.

  Again, the standard value 206 is suggested by the control unit of the medical device. However, in contrast to FIG. 1, the operator cannot easily confirm this value, but instead provides his own second parameter value 304 by hand for this purpose. Enter in field 302.

  This is done by writing on the touch-sensitive surface embodied in FIG. 2 as a touch screen display with the operator's finger 303.

  Finger touches in the field 302 are recorded by the control unit and displayed as a graphic display representing the parameter value 304.

  When the operator finishes entering the second parameter value 304, the actuation surface 305 is available so that, when activated, the control unit is informed that the operator input is complete. Available programs for handwriting recognition then attempt to convert the input into machine-readable numbers.

  If the numerical value communicated to the control unit by the program for handwriting recognition matches the first parameter value 206, the control unit performs further processing in the control unit where the first parameter value controls the instrument. Be encouraged to be received or receivable.

  This can be achieved with or without an act by the operator in that the operator activates the second actuation area 405 for confirmation (FIG. 4), for example.

  After verifying whether the numerical value transmitted to the control unit by the program for handwriting recognition matches the first parameter value 206, at least one acoustic signal, tactile signal or light signal is output, The perceptible characteristics are determined by the verification result. For example, a match between the first parameter value and the second parameter value may be indicated by an acoustic tone, a characteristic vibration of a touch screen provided for this purpose, or a change in the color of the field 201. Similarly, if the first parameter value and the second parameter value do not match, a different tone may be output, which encourages different vibrations of the touch screen display provided for this purpose. It is better that the field 201 is displayed in a color different from that in the first case. In the sense of the invention, the value or warning or symbol output on the display 100 determined by the verification result is also an optical signal. The output of an acoustic signal, tactile signal or light signal may also occur as a function of the verification of the command entered by the operator, for example by verifying whether the command entered is infeasible .

  Similarly, an acoustic signal, a tactile signal and / or a light signal may be prompted, the perceptible characteristic of which is the result of verification whether the input second parameter value is within the limits. Determined by.

  FIG. 4 shows the situation when the input second parameter value 404 is out of the control unit suggestion 206. In the upper image of FIG. 4, the operator has entered an outlier value 404 (“500”) rather than the proposed parameter value 206 (“400”).

  As described above in connection with FIG. 3, the program for handwriting recognition converts the operator input to a machine readable value 401 and displays it in the field 201. At the same time, the handwritten display representing the parameter value 404 may be erased from the field for input by the operator 302, the purpose of which is to allow updated input into the field 302.

  The operator now confirms the new value 401 recognized from his original input by checking the corresponding field 405 or repeats his input and repeats the input in the manner described above in connection with FIG. An option to confirm field 305 is provided.

  The numerical value entered by the operator and confirmed via the field 405 can then be received as a second parameter value by the control unit controlling the dialysis machine.

  FIG. 5 shows two other embodiments of the screen content of the medical device of the present invention for situations where the numerical value entered by the user is outside the range known to the control unit.

  In the upper diagram of FIG. 5, the control unit has proposed a numerical value “400” as the first parameter value 206, but the operator deviates from this and has a second value having a numerical value “900” in the field 302. The parameter value is entered.

  The control unit may be configured to verify the plausibility of the input by the operator and to verify that it meets previously programmed limits. Thus, for example, the parameter 207 whose value is entered in FIG. 5 may be the blood flow rate in the extracorporeal blood circuit as shown in FIGS.

  The control unit can compare the parameter values entered thereby with the limits previously programmed for treatment and for each patient, and if the parameter value input is outside the limits , A warning 502 (in the lower diagram of FIG. 5) can be output.

  For example, blood flow rates of up to 700 mL / min are typical for adult hemodialysis treatment. Different limits apply to children. These limit values may be stored individually and are used by the control unit for each treatment.

  If so, the input area 302 may be deleted as shown at the bottom of FIG. 5 and an updated input may be requested.

  In addition, as a result of the input second parameter value, it is possible to verify whether this effect is not suitable for therapeutic purposes when achieved in the dialysis machine. The attending physician will often prescribe a certain period of time that the patient needs to undergo dialysis based on the treatment parameters in order to achieve a certain therapeutic purpose.

  However, certain situations may occur during treatment, such as cardiovascular variability in the patient, thereby necessitating deviations from the original physician's prescription. For example, the dialysate flow rate may be reduced to prevent too fast removal of certain substances from the blood.

  As a result of the reduced dialysate flow rate, if the dialysis time is not extended, the original therapeutic purpose will not be reached. Such deviation may be output to the operator as a warning via the display device. Similar to message 502 of FIG. 5, this will result in a non-compliant state of the doctor's prescription if the parameter value entered by the operator does so in the medical device. In this case, for example, such a message directed to an operator of a medical device embodied as a dialysis machine may be expressed as follows, for example. “A new dialysate flow rate of 300 mL / min that you entered will result in the desired therapeutic objective not being achieved as long as the dialysis time remains unchanged. Dialysis time to achieve the original therapeutic objective. Enter “Yes”, “No” or “End”. "

  The operator will then adjust the dialysis time based on the above message (enter “yes”), leave the dialysis time unchanged (enter “no”), or terminate the process (“end”). Enter words as instructions rather than numbers. The control unit of the medical device then verifies whether the operator input corresponds to an executable command and accepts the corresponding command based on the verification result.

  In addition, during treatment, there may be situations where the operator wishes to end treatment prematurely. In such a case, before the treatment device actually ends the treatment, the treatment device may output a corresponding message on the display device and inform the operator of the result of the treatment completion by waiting for confirmation by the operator input.

  The end result of treatment often does not fit the doctor's prescription.

  A typical prescription for dialysis treatment is the patient's weight to be achieved, because the patient can no longer properly remove water taken with his food due to his renal failure. It is not possible. This water accumulates in the patient's blood and tissues. As a result, at the start of treatment, the patient has a weight that is heavier than the comparable patient's weight, where renal activity is normal. One purpose of dialysis is to remove excess water from the patient's blood. The amount of water removed corresponds to the weight loss of the patient during dialysis. Thus, dialysis physicians often prescribe the initial weight to be achieved, also called dry weight or target weight.

  If the operator ends the treatment prematurely, this may result in the patient's prescribed weight not being reached.

  The dialysis machine may output a message to inform the operator about the outcome of terminating the treatment. This message may include keywords. Examples of these keywords include “weight” or “continue”. Keywords characterize the results corresponding to the meaning of this word. Such a report may be as follows. “If treatment is stopped immediately, the prescribed WEIGHT will not be reached. Enter WEIGHT for confirmation. Enter“ CONTINUE ”if treatment should continue. . "

  To confirm the end, the operator should enter the keyword “WEIGHT” into the input device as already prescribed, and if the keyword “CONTINUE” is entered, treatment continues.

  Thus, entering a keyword gives the operator the opportunity to reconsider the results of his actions. This is especially true when the keyword to be input characterizes the result of the input. This reduces the risk that actions will be rushed or not reflected. This not only relates to the premature end of treatment initiated by the operator, but also to intervention by any operator.

  Keyword handwriting or verbal input is an instruction input in the sense of the present invention.

  A warning may be output if the installed program for handwriting recognition is an input by an operator that cannot recognize a numerical value or command due to, for example, incomplete or unreadable handwriting input, The operator may be instructed to repeat the input.

  In addition, a program installed for handwriting recognition recognizes a person who made an input based on the inputted handwriting and / or a person who has made an input is permitted to make an input. Can be assumed to be not included.

  For example, a configuration may be adopted in which only a specific person, for example, a doctor or a medical staff in charge is allowed to input to the medical device. It is good to memorize the handwritten characteristics of these people. A program installed for handwriting recognition thus recognizes who made the input for this purpose or whether someone who was not intended for this purpose made the input. be able to.

  In this way, a protocol can be created and stored electronically that recognizes who made the input to the medical device, or unauthorized by refusing to accept input by an unauthorized person It is possible to prevent a person from making input to the medical device.

  In addition to the optical output of the proposed values, the handwritten input by the operator described in FIGS. 3 to 5 is output acoustically via the conversation output by the loudspeaker 107 as an alternative, As an alternative or in addition to the operator's handwritten input, these values can be supplemented or replaced by verbal operator input in that the values are acoustically input by the microphone 108 with dictated numerical values.

  Output of the proposed parameter value for a certain first parameter is supported by naming the parameter belonging to the first parameter value. Thus, in the case of blood flow as a parameter, the word “blood flow” can be output via a loudspeaker and linked to the next value, eg “400”.

  In this case, operator input can be achieved in that the operator speaks or speaks out the second parameter value. The machine-readable number or instruction can be determined by dictation input via the installed microphone 108 and the corresponding program. When the number is the second parameter value, it is possible to proceed in the same way as in the case of handwriting input of the second parameter value.

  This is also particularly relevant when the verbal input is not understood, in which case the control unit can acoustically request the input to be repeated, or the second parameter value is outside the limits. If so, the control unit can announce a warning. Similarly, by analogy with handwriting recognition, it is possible to estimate the person who is speaking by analyzing the dictated words, and as a result, prevent the input from unauthorized persons in the manner described above. Is possible.

  Furthermore, the combination of handwriting input and verbal input provides another possibility to increase the safety of operator input. In this case, the operator must perform handwriting input and oral input.

  The handwriting input and the oral input are separately and additionally verified as to whether there is a match between the two inputs in the manner described above. Only when the handwriting input and the verbal input are the same, the control unit can advance the parameter value input thereby.

  The present invention supports the work of the attending medical staff on the one hand, but on the other hand, this also prevents inadequate settings from being inadvertently or accidentally made about the specific treatment situation. To do.

  The above-described embodiments are to be understood as illustrative and suggest to those skilled in the art that these embodiments can be applied to other embodiments not shown herein without further inventive features. Is done.

Claims (14)

A user input method for a medical device,
Outputting a first parameter value characterizing the medical device or a message directed to an operator of the medical device, and handwriting or verbally inputting a second parameter value or command characterizing the medical device;
Verifying the second parameter value or the instruction;
Depending on the verification result, the first or second parameter value is accepted or acceptable for further processing by a control unit controlling the medical device, or the first parameter value Neither the second parameter value is accepted or accepted for further processing by the control device controlling the medical device, or the command is accepted by the control device controlling the medical device. And instructing the method.   The verification can be performed whether the second parameter value matches the first parameter value, or whether the second parameter value is within a certain limit value, or the instruction can be executed. The method of claim 1, comprising verifying whether or not.   The method according to claim 1 or 2, wherein the output is performed via a display or a loudspeaker.   The method according to claim 1, wherein the input is performed by handwriting on a touch-sensitive surface or by inputting verbally via a microphone.   The method according to claim 1, wherein after the verification, at least one acoustic signal, tactile signal, or optical signal is output, and a perceptible characteristic thereof is output according to the verification result.   The method as described in any one of Claims 1-5 which estimates the person who performed handwriting or verbal input based on handwriting or verbal input.   An instrument comprising a medical device with an input device, an output device, and a control unit, wherein the medical device, the output device and the control unit are characterized by a first parameter value characterizing the medical device, or the first A message directed to the operator of the medical device to direct a parameter value of 1 is output on the output device and a second parameter value characterizing the medical device, or by handwriting or verbal input via the input device The entered command is verified to accept or accept the first or second parameter value, or the first or the second in the control unit of the fluid management instrument depending on the verification result. The parameter value of 2 is accepted or not acceptable, or a command is received from the control unit that controls the device. Configured, the instrument so that the cause is.   In the verification, the control unit determines whether the second parameter value matches the first parameter value, or whether the second parameter value falls within a certain limit value. The instrument of claim 7, wherein the instrument is configured to determine whether or not the instruction can be implemented.   9. An instrument as claimed in claim 7 or 8, wherein the output device is a display or a loudspeaker.   10. An instrument according to any one of claims 7 to 9, wherein the input device has a touch sensitive surface or is a microphone.   11. The control unit is configured to direct the output of an acoustic signal, a tactile signal and / or an optical signal after the verification, so that the perceptible characteristic of the signal is dependent on the verification result. The instrument according to any one of the above.   The instrument according to any one of claims 7 to 11, wherein the control unit is configured to estimate a person who has made the handwriting or verbal input based on the handwriting or verbal input.   13. The device according to any one of claims 7 to 12, wherein the medical fluid management device is a blood treatment device and is configured especially for hemodialysis, peritoneal dialysis or plasma phlebotomy.   14. An instrument according to any one of claims 7 to 13, comprising a control unit configured to perform the method according to any one of claims 1-7.

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